Spreadlight lens and LED strip-shaped lamp

Abstract

The invention discloses a spreadlight lens and an LED strip-shaped lamp. The LED strip-shaped lamp comprises a circuit board, multiple LEDs arranged on the circuit board in the length direction, and a row of lens sets respectively covering the LEDs in the LED light emitting direction. The lens sets include two spreadlight lenses. The at least two spreadlight lenses are respectively arranged at two ends of the circuit board for deflecting emitted light rays of the corresponding LEDs to the middle part of the circuit board for emitting to reduce the light intensity at two ends of the LED strip-shaped lamp. The spreadlight lens includes optical axis, an emitting surface perpendicular to the optical axis, and an incident surface. The optical axis is inserted in the center of the incident surface. The center of the emitting surface is deviated from the optical axis. An included angle between the center connecting line of the incident surface and the emitting surface and the optical axis is equal to an included angle between the incident surface and the emitting surface, so that the light rays and the emitting surface are deflected corresponding to the optical axis. The LED strip-shaped lamp can prevent obvious light and shade contrast caused by excessive illuminance of two ends of the LED strip-shaped lamp.

Description

technical field [0001] The invention relates to a lens, in particular to a polarized lens and an LED bar lamp. Background technique [0002] With the continuous development of lighting technology, LED (Light Emitting Diode, Light Emitting Diode) lighting has been continuously popularized and applied due to its advantages of high light efficiency, good light concentration, energy saving and environmental protection. Especially in lighting fields such as showcases and cabinets, slender lighting fixtures are required to meet the requirements of the installation environment and lighting performance. LED strip lights can form a longer light field, and can also be slender to meet the requirements of the installation environment. In order to meet a certain light effect, generally a lens is provided on the LED cover to redistribute the light. [0003] In the prior art, on the one hand, in order to ensure that the light effect along the length direction of the LED strip light is un...

AI Technical Summary

Problems solved by technology

Therefore, the LED strip lights in the prior art are not conducive to making full use of light and are prone to produce light spots outside the irradiated object, which affects the lighting effect

In particular, when the distance between the LED strip light and the cabinets or walls on both sides is relatively close, the light irradiation area emitted from the lenses at both ends of the LED strip light is small, so that the light is concentrated in a small area to form a strong spot. Therefore, it is easy to form a strong brightness contrast with the illuminated surface and affect the lighting effect

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